Detecting the presence of chloride in hardened mortar using microwave non-destructive testing

Chiniforush, AA; Noushini, A; Akbarnezhad, A; Valipour, H

Detecting the presence of chloride in hardened mortar using microwave non-destructive testing

Chiniforush, AA Noushini, A

Akbarnezhad, A Valipour, H

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Publication Type:: Conference Proceeding
Citation:: High Tech Concrete: Where Technology and Engineering Meet - Proceedings of the 2017 fib Symposium, 2017, pp. 83 - 90
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Chiniforush, AA	en_US
dc.contributor.author	Noushini, A https://orcid.org/0000-0003-2604-5592	en_US
dc.contributor.author	Akbarnezhad, A	en_US
dc.contributor.author	Valipour, H	en_US
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	High Tech Concrete: Where Technology and Engineering Meet - Proceedings of the 2017 fib Symposium, 2017, pp. 83 - 90	en_US
dc.identifier.isbn	9783319594705	en_US
dc.identifier.uri	http://hdl.handle.net/10453/133432
dc.description.abstract	© Springer International Publishing AG 2018. Concrete durability is to a large extent governed by the concrete resistance to the penetration of aggressive substances. One such aggressive substances, present predominantly in marine or coastal environments, is the chloride ion. Chloride in presence of water and oxygen cause corrosion and the measurement of chloride content is an important factor in the detection of early corrosion damage induced by chloride attack. However, there is currently a lack of a reliable nondestructive method to examine the chloride content of the structure in practice. This paper presents the results of an experimental study to investigate the viability of Microwave Non-Destructive Testing (MNDT) to monitor the ingress of the chloride into the concrete. The variations in the electromagnetic properties of mortar specimens with variations in their chloride contents are measured to identify correlations between chloride content and two main electromagnetic properties of mortar; viz. dielectric constant and loss factor. EMPs are measured through two-port measurement performed using a vector network analyzer and S-band rectangular waveguide. The existence of correlations between chloride content of mortar and its electromagnetic properties is confirmed by the preliminary results, highlighting the potential for development of an MNDT technique to monitor the chloride content of concrete in practice.	en_US
dc.relation.ispartof	High Tech Concrete: Where Technology and Engineering Meet - Proceedings of the 2017 fib Symposium	en_US
dc.relation.isbasedon	10.1007/978-3-319-59471-2-11	en_US
dc.title	Detecting the presence of chloride in hardened mortar using microwave non-destructive testing	en_US
dc.type	Conference Proceeding
utslib.for	0912 Materials Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US

Abstract:

© Springer International Publishing AG 2018. Concrete durability is to a large extent governed by the concrete resistance to the penetration of aggressive substances. One such aggressive substances, present predominantly in marine or coastal environments, is the chloride ion. Chloride in presence of water and oxygen cause corrosion and the measurement of chloride content is an important factor in the detection of early corrosion damage induced by chloride attack. However, there is currently a lack of a reliable nondestructive method to examine the chloride content of the structure in practice. This paper presents the results of an experimental study to investigate the viability of Microwave Non-Destructive Testing (MNDT) to monitor the ingress of the chloride into the concrete. The variations in the electromagnetic properties of mortar specimens with variations in their chloride contents are measured to identify correlations between chloride content and two main electromagnetic properties of mortar; viz. dielectric constant and loss factor. EMPs are measured through two-port measurement performed using a vector network analyzer and S-band rectangular waveguide. The existence of correlations between chloride content of mortar and its electromagnetic properties is confirmed by the preliminary results, highlighting the potential for development of an MNDT technique to monitor the chloride content of concrete in practice.

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http://hdl.handle.net/10453/133432